Cyclic olefin copolymer with polar group and preparation method thereof

Abstract

The invention relates to a cyclic olefin copolymer with polar group and a preparation method thereof. The cyclic olefin copolymer comprises the components by molar percent: 20-79.5% of cyclic olefin monomer with general formula I and / or general formula II, 20-79.5% of non-cyclic-olefin monomer with general formula III, and 0.5-20% of polar non-cyclic-olefin monomer with general formula IV. The preparation method of the cyclic olefin copolymer adopts a solution polymerization method; the cyclic olefin monomer, the non-cyclic-olefin monomer and the polar non-cyclic-olefin monomer protected by triisobutyl aluminium are added into a reaction kettle under the condition that metallocene main catalyst and alkyl aluminium catalyst accelerator exist, and then are stirred for polymerization reaction at the temperature of 30-100 DEG C under the atmospheric pressure of 1-100. The prepared cyclic olefin copolymer which has high content of cyclic olefin and the polar group has high heat resistance and cohesive property as well as good compatibility of organic matters.

Description

technical field The invention relates to a cycloolefin copolymer with a polar group and a preparation method thereof, in particular to a method for preparing a cycloolefin copolymer with a polar functional group by solution polymerization. Background technique Cyclic-Olefin (co)polymers, referred to as COC (Cyclic-Olefin Copolymers), are a class of high value-added thermoplastic engineering plastics formed by (co)polymerizing cyclic olefins. COC resin has high transparency, extremely low dielectric constant, excellent moisture barrier, heat resistance, chemical stability and dimensional stability, and has been widely used in the manufacture of various optical lenses, automotive headlights, LCD Components, electronic and electrical components, pharmaceutical and food packaging materials, etc. There are two production processes of COC: the addition polymerization process using metallocene catalysts and the ring-opening metathesis polymerization process (ROMP). But usually C...

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Problems solved by technology

Although this approach will not affect the insertion efficiency of cycloolefin monomers, the functionalization of COC must be achieved through subsequent reactions.

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